Contrivance to provide for the free exit of flies from buildings and to prevent their reentrance.



C. TOOTELL.

CONTRIVANGE TO PROVIDE FOR THE PR BE EXIT OF FLIES PROM BUILDINGS AND TO PREVENT EIR REE'NTRANGB. APPLICATION FILED JAN 27, 1911.

Patented Dec. 10, 1912.

UNITED STATES PATENT OFFICE.

011mm roornLL, or mounnn, VICTORIA, aus'rmnm- CONTRIVANCE TO PROVIDE FOR THE FREE EXIT OF FIJI ES FROM BUILDINGS AND TO v PREVENT THEIR ENTRANCE.

Specification of Letters Patent. Application filed January 27, 1911. Serial .Io. 804,983. 7

Patented Dec. 10, 1912.

.To all-whom it may concern:

- Be it known that I,CHAnLIE TooTnLL, of the Engineers Depot, Alexandra avenue, Melbourne, Victoria, Australia, have .invented an Improved Contrivance to Pro-' vide for the Free Exit of Flies. from Buildings and'to Prevent Their Rentrance, of which the followingis a specification.-

This invention hasbeen devisedin order to provide some simple and inexpensive yet thoroughly eflicient means for removing flies from the interior of dwelling houses and other buildings and at the same time preventing them from regaining an entrance to said buildings. It is generally well known to adopt forthis purpose a wire gauze cone so arranged that the larger diameter opens inwardly while the apex or small opening 2' projects outwardly, the cone beingmounted in a wire blind or door. In accordance with the present invention, cones of this kind are mounted on sheets of metal, wood or similar opaque material which is of particular advantage as the flies landing on the opaque metal or wood appear to be attracted by the light passing through the cones and are thus induced to pass into-the outer atmosphere.

The invention further resides in other features of construction as hereinafter described. a

In order that the invention may be readily understood it will be described with referonce to the accompanying drawings, in Ywhioh Figure 1 is a side elevation of a cone the apphcation of which, as hereinafter described, constitutes the essential feature of this invention. Fig. 2 is a vertical central section of said cone, and Fig. '3 illustrates the application thereof to a piece of wire gauze such as is used for fly doors, blinds or the like. Fig. 4 is an elevation. of the con-' struction illustrated in Fig. 3. Figs. 5 and 6 are similar views to Figs. 3 and 4 illustrating the applicationv ofthe invention to a wooden board, piece of sheet metal or other material adapted to be secured in position in a window frame, doorway, ventilator frame, skylight or other desired part of a dwelling or other building. Figs. 7 and 8 are respectively a section and lan illustrating the invention constructed m a sheet of glass, metal or other material admitting of the conical or funnel shaped projections being cast, stamped or otherwise projects outwardly,

The essential feature of this invention" consists 1n the use of conical or funnel f shaped projections 1 as illustrated in the drawings, permanently or temporarily fixed 1n the Window, door, fan-light, fly door, "fly blind, ventilator or other desired part of a dwelling-or other building construction, in

such a way that the smaller diameterv of sa1d comoal or funnel shaped projection said end being provided with a small hole 2 which allows the flies to escape from the interior of the building or other structure to which it is applied, while the larger diameter 3 or base of the conical or funnelshaped projection is seti'n,-or 'isflushwith, the surface of the gauze 4,-piece' of wood, sheet of glass, teri'al to which it is attached, or upon or from which it is formed. Cones may-be constructed as indicated in Figs. 1 to 6 of wire gauze and may be provided with a 1'1111 or flange 5 around their larger end to facilitate their insertion or attachment to metal or other mai a sheet of gauze for instance as illustrated in Figs. 3 and 4. It will, however,-be readily understood that other means for securing or attaching the cones in position may be employed.

Sheets of gauze provided with funnels or cones as above described may be cut to suit different sized windows and may be fitted in position in any way found most convenient and the sheet of gauze may be fitted with an outer frame as indicated at 6 in Figs. 3 and 4. If preferred, the frame, sheet or board carrying the cones may be made adjustable in length (as indicated by way of example in Figs. 5 and 6) sliding extension pieces as 7 being mounted so that they can be adjusted or slid in or out to increase or decrease the length of the board or sheet. according in which it is to be secured. I

If preferred, the sheets of gauze or other material upon which the cones. are formed or attached can be perforated or otherwise made so that strips can readily be cut off to reduce it to the exact length required to to the width of the opening 10 suit the window or other opening or place where it is to be fitted.

The cones may be formed integral with sheets of glass as indicated in Figs-7 and material .as the of glass any 0t 8 said cones 1 being molded out of the same plate or sheet 4; or, instead er suitable 'material such as celluloid or nietal might be used, the essential feature, so concerned, being that such sheet has one or any number of larger or smaller cones projecting from it with the larger diameter or mouth of the cone directing into the building while its apex with small outlet 2 therein projects away from or outside the building. Although the cones are conveniently made circular in form, they can be pyramidal as indicated in Fig. 9 or can be in the form of a V-shaped' ridge or corrugation as indicated in Fig; 10 and be provided with small holes 2 in the apex of the conical ridge or can be made octagonal or of any other polygonal shape, the only essential being, as above indicated, that they shall lead from the larger opening at the inner end to a small opening at the outer end.

In'operation, if the invention above described is placed, in say, the upper part of a window, the flies will, as it were, be automatically extracted from the building. They move about over the window opening or uze forming the screen, become attracted into the funnel shaped opening leading to the outside atmosphere and having passed through the cones are, in practice, pres far as this invention is vented from again returning. In this way, a dwellin or other building will be rapidly cleared o flies in a thoroughly efiicient manner and without the objectionable features incidental to the use of the ordinary means of coping with the'pests.

The contrivance is easily fitted in position and can be applied to ordinary ventilators, the gauze conical or. funnel shaped projections serving to remove the flies from the interior of thevbuilding without in any way interfering with the ventilation.

The invention can be made comparatively attractive in appearance, the conical or funnel shaped projections made of glass or other similar material not being -a disfigurement and they can, if desired, be inserted in lead lights by securing them in position in the ordinary manner by means of lead channel bars.

I claim:

An adjustable frame comprising a board of opaque material with holes cut therein in combination with suitably transparent cones having a small hole at or near the apex, said cones being adapted to be fitted in sald holes and project therefrom substantially as and for the purposes specified.

In witness whereof I have hereunto set I my hand in the presence of two witnesses. CHARLIE TOOTELL.

Witnesses:

WILLIAM ARMSTRONG, ANNIE EDWARDS. 

